| 摘要 |
<p>A print head driving apparatus capable of enhancing integration of a semiconductor circuit board Incorporating the print head driving apparatus. The print head driving apparatus includes a selecting unit (720) to selectively drive a plurality of nozzles in the print head, a primitive signal receiving unit (730) to receive a serial primitive signal to select a primitive group from among a plurality of n primitive groups each containing a plurality of m nozzles capable of ejecting ink from the print head during a given print cycle, to convert the serial primitive signal to a parallel primitive signal, and to provide the parallel primitive signal to the selecting unit, and an address signal receiving unit (740) to receive a serial address signal to select at least one nozzle through which ink should be ejected in the selected primitive group, to convert the serial address signal to a parallel address signal, and to provide the parallel address signal to the selecting unit (720), wherein the primitive signal-receiving unit includes n 1-bit shift registers (732_n) serially connected to each other, and each of the n 1-bit shift registers corresponds to a respective one of the plurality of n primitive groups, Therefore, it is possible to reduce a number of wires required to transfer selection signals on a semiconductor circuit board in which the print head driving apparatus is implemented, thereby achieving a high-density layout of the semiconductor circuit board.</p> |
